﻿/* =============================================================
 * bootstrap-collapse.js v2.0.2
 * http://twitter.github.com/bootstrap/javascript.html#collapse
 * =============================================================
 * Copyright 2012 Twitter, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============================================================ */

!function ($) {

    "use strict"

    var Collapse = function (element, options) {
        this.$element = $(element)
        this.options = $.extend({}, $.fn.collapse.defaults, options)

        if (this.options["parent"]) {
            this.$parent = $(this.options["parent"])
        }

        this.options.toggle && this.toggle()
    }

    Collapse.prototype = {

        constructor: Collapse

    , dimension: function () {
        var hasWidth = this.$element.hasClass('width')
        return hasWidth ? 'width' : 'height'
    }

    , show: function () {
        var dimension = this.dimension()
          , scroll = $.camelCase(['scroll', dimension].join('-'))
          , actives = this.$parent && this.$parent.find('.in')
          , hasData

        if (actives && actives.length) {
            hasData = actives.data('collapse')
            actives.collapse('hide')
            hasData || actives.data('collapse', null)
        }

        this.$element[dimension](0)
        this.transition('addClass', 'show', 'shown')
        this.$element[dimension](this.$element[0][scroll])

    }

    , hide: function () {
        var dimension = this.dimension()
        this.reset(this.$element[dimension]())
        this.transition('removeClass', 'hide', 'hidden')
        this.$element[dimension](0)
    }

    , reset: function (size) {
        var dimension = this.dimension()

        this.$element
          .removeClass('collapse')
          [dimension](size || 'auto')
          [0].offsetWidth

        this.$element[size ? 'addClass' : 'removeClass']('collapse')

        return this
    }

    , transition: function (method, startEvent, completeEvent) {
        var that = this
          , complete = function () {
              if (startEvent == 'show') that.reset()
              that.$element.trigger(completeEvent)
          }

        this.$element
          .trigger(startEvent)
          [method]('in')

        $.support.transition && this.$element.hasClass('collapse') ?
          this.$element.one($.support.transition.end, complete) :
          complete()
    }

    , toggle: function () {
        this[this.$element.hasClass('in') ? 'hide' : 'show']()
    }

    }

    /* COLLAPSIBLE PLUGIN DEFINITION
    * ============================== */

    $.fn.collapse = function (option) {
        return this.each(function () {
            var $this = $(this)
              , data = $this.data('collapse')
              , options = typeof option == 'object' && option
            if (!data) $this.data('collapse', (data = new Collapse(this, options)))
            if (typeof option == 'string') data[option]()
        })
    }

    $.fn.collapse.defaults = {
        toggle: true
    }

    $.fn.collapse.Constructor = Collapse


    /* COLLAPSIBLE DATA-API
     * ==================== */

    $(function () {
        $('body').on('click.collapse.data-api', '[data-toggle=collapse]', function (e) {
            var $this = $(this), href
              , target = $this.attr('data-target')
                || e.preventDefault()
                || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') //strip for ie7
              , option = $(target).data('collapse') ? 'toggle' : $this.data()
            $(target).collapse(option)
        })
    })

}(window.jQuery);